Oil & Gas Services

Supporting the energy transition.

The renewable energy transition is precisely that: a transition. Oil and gas remains an essential part of the global energy mix. The ocean engineering expertise that makes us experts in offshore wind, wave and hydrogen is also deeply beneficial for oil and gas sites.

We have completed projects worldwide, at all stages in the lifecycle of oil and gas fields – including initial exploration and production, foundation design and installation, pipeline routing and decommissioning.

Our services include:

Seismic interpretation and data analysis for oil and gas exploration.
Subsurface volumetric evaluation and prospect risk assessment.
Management of offshore operations including geophysical surveys, geotechnical site investigations and offshore positioning operations (e.g. rigs, vessels, platforms and subsea assets).
Foundation engineering, offshore positioning and installation analyses for subsea infrastructure including jack-up emplacement, spud-can penetration and pile driveability analyses.
Trenching and burial assessments.
Pipeline-soil-interaction (PSI) analysis.
Carbon capture and storage (CCS), subsurface integrity analysis (SIA) and risk assessment.
Reservoir appraisal and seismic interpretation for storage capacity evaluation.
Technical expert witness role in dispute resolution.

We work with the best

From exploration to decommissioning

Ternan Energy offer a range of services and solutions to our clients within the global Oil & Gas sector. We have completed projects worldwide at all stages in the lifecycle of an oil & gas field. These range from initial exploration & production; foundation design and installation; pipeline routing and trenching and finally, decommissioning.

Talk to the team

Offshore operations

Including geophysical surveys, geotechnical site investigations, offshore positioning operations (e.g. rigs, vessels, platforms and subsea assets).

Foundation engineering

Offshore positioning and installation analyses for subsea infrastructure including jack-up emplacement, spud-can penetration, pile driveability analyses.

Client feedback

What do our clients think?

“Throughout the project Ternan has been easy to work with, responsive and helpful, and were a key deliver partner for the project. We will certainly be approaching Ternan again for future projects.”

Neil Crawford, Subsea Cables Package Manager, Ocean Winds

“Kent have worked with Ternan Energy on several projects now, where Ewan Fielding was the Geotechnical project engineer focal point. Ewan has consistently shown his ability to manage the project scope of work Ternan were required to deliver, including great responsiveness every time it was required and providing a clear and proactive communication to manage expectations and deliveries.”

Kent Group PLC

“…all four of the client representatives were excellent and I wouldn’t hesitate to recommend any of them to other projects or work with them again. All four were on board through some quite difficult situations for various different reasons during this campaign and all were handled very professionally with excellent communication onshore.”

Amelia Chilcott Site Investigation Package Manager  RWE Renewables UK

“Jess has and is doing an excellent job on the project in what has been a challenging situation. Jess is positive and pleasant to work with and builds rapport well. She clearly has excellent offshore geophysical experience.”

Lee Goulding, Director of Engineering, Thistle Wind Partners

We make a measurable difference for our clients. Here’s an example.

Take a deep dive into how our geophysical, geotechnical and ocean engineering expertise brings tangible benefits to a project.

All case studies

Delivering Expert Offshore Client Representation for Vattenfall Zeevonk

The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...

Delivering Expert Offshore Client Representation for Vattenfall Zeevonk

The Challenge Vattenfall's ambitious Zeevonk offshore wind farm—projected to deliver 2GW of wind power alongside a 50MWp floating solar farm—faced the complex challenge of conducting comprehensive site investigations 62km off the Dutch coast. As a joint venture...